比较Integer和int

Author: enjoyCoding666

src/main/java/com/base/IntegerDemo.java

@@ -0,0 +1,18 @@
+package com.base;
+
+public class IntegerDemo {
+    public static void main(String[] args) {
+        //没必要写成 Integer number1=new Integer(15);
+        Integer number1=15;
+        Integer number2=15;
+        int number3=15;
+
+        if(number1==number2) {
+            System.out.println("number1和number2相等");
+        }
+        if(number2==number3) {
+            System.out.println("number2和number3相等");
+        }
+
+    }
+}